VX

It would seem that Russia lags a bit behind much of the world in the free speech department. Alexei Navalny, a Russian anti-corruption activist and well-known critic of President Vladimir Putin is being treated in Germany for an apparent

Initial reports suggest that Kim Jong-Nam, the estranged half-brother of North Korean dictator Kim Jong-Un, was murdered with VX, a type of agent used in chemical warfare. What is it, and how does it work?